Plug



FIG. 1 is a front top perspective view of a plug showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line in the figure drawings is included for the purpose of illustrating environment and forms no part of the claimed design. 

We claim the ornamental design for a plug, as shown and described. 